MPU Hal (#1492)

* Furi HAL: memory protection unit
* Core: prohibit NULL dereferencing, even for reads.
* Applications: fix NULL dereference
* Core: stack protection by MPU
* MPU: stack region alignment
* Apps: fix null pointer dereferences
* Threads: fix non-null arg check
* Desktop settings: fix null pointer dereference
* Core: documented null-check hack
* Fix null dereference issues
* Apps: args check
* Core: naming fixes
* format code
* Core: remove NONNULL specifier
* FurHal: move MPU initialization to begining, fix enum naming

Co-authored-by: あく <alleteam@gmail.com>

applications/updater/updater.c

@@ -34,7 +34,7 @@ static void
 
 Updater* updater_alloc(const char* arg) {
     Updater* updater = malloc(sizeof(Updater));
-    if(arg) {
+    if(arg && strlen(arg)) {
         string_init_set_str(updater->startup_arg, arg);
         string_replace_str(updater->startup_arg, ANY_PATH(""), EXT_PATH(""));
     } else {